Ecology, Environment and Conservation Paper

Vol 26, Issue 1, 2020; Page No.(257-265)

THE EFFECT OF COMPARISON OF AQUAPONICS AND MODIFIED CONVENTIONAL AQUACULTURE SYSTEMS ON THE CONTENT OF COPPER, IRON AND ZINC

Deswati, Ella Intan Sari, Amelliza Deviona, Yulizar Yusuf and Hilfi Pardi

Abstract

This study was conducted to compare water quality (DO, COD, BOD, Cu, Fe, and Zn) in aquaponic systems and modified conventional aquaculture systems). In aquaponic units, recirculation continues, water used for Oreochromis niloticus culture comes out of the fish pond tank (FPT) which contains waste of fish metabolism, food that is not eaten, and other wastes.The first wastewater passes through a mechanical tank-1 (MT-1) which filters solid waste and then passes through a biofilter tank (BT) which oxidizes ammonia to nitrite, and nitrate. then flows to the mechanical tank-2 (MT-2) , nutrient water moves to hydroponic plants (HP), and finally the water returns to the fish pond tank (FPT), and so on. The same thing happens with modified conventional aquaculture systems, with only 1 unit mechanical tank, and without hydroponic plants. Furthermore, the data obtained to be compared. Aquaponic system, water quality parameter values (DO was 3.3329 mg/L; COD was 4.397 mg/L; BOD was 1.248 mg/L; Cu was 0.045 mg/L; Zn was 0.197 mg/L and was 0.240 mg/L) and modified conventional aquaculture systems (DO was 3.199 mg/L; COD was 7.309 mg/L; BOD was 0.903 mg/L; Cu was 0.054 mg/L; Zn was 0.210 mg/L and Fe was 0.506 mg/L). The use of an aquaponic system was more effective than a modified conventional aquaculture system because the aquaponic system was supported by the presence of MT-1, BT, MT-2, HP, and FPT, while the modified conventional aquaculture systems were only supported by MT, BT, and FPT.

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